Abstract
Imaging characteristics of wavefront coding systems in the presence of spherical aberration are analyzed by using ray aberration approach. The analytical expressions for ray aberration, the boundary of ray map and the size of spot diagram of a wavefront coding system in the presence of defocus and spherical aberration are obtained by wave aberration theory. The effect of spherical aberration on imaging performance of wavefront coding systems with a cubic phase mask is presented by ray aberration and spot diagram. The results show that the wavefront coding systems have a high tolerance to spherical aberration through a given defocus range.
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